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US4900818A Expired / Lapsed US ⏱️ 0.0 years remaining

Large scale synthesis of twelve member diazamonocyclic compounds

Assignee: Bayer Corp
•
Filing: 1989-03-06
•
Granted: 1990-02-13
•
Expires: 2009-03-06
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Abstract

Abstract A process is disclosed for synthesizing large quantities of a compound of formula I ##STR1## wherein a solution of a compound of formula II ##STR2## is mixed with a solution of a compound of formula III ##STR3## under suitable process conditions, and wherein A, same or different, is N--R, O, S, CRR' or P(O)R, and R and R' are hydrogen, alkyl, alkylidene, aryl, tosyl, allyl or benzyl, and B is O. Compounds of formula I may be reduced to form an azacorand of formula IV ##STR4## wherein K and L, same or different, are N--R, O, S, CRR', or P(O)R, and R and R' are hydrogen, alkyl, alkylidene, aryl, tosyl, allyl or benzyl. Also disclosed in a compound of formula IV synthesized in accordance with the above procedure wherein K and L are not both O or S.

Inventors

  • 👤 Bronislaw P. Czech

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 13:29
CPC Classifications
C; C07; C07D; C07D273/00; C07D291/00; C07D291/02; G; G01; G01N; G01N27/00; G01N27/26; G01N27/28; G01N27/30; G01N27/333; G01N27/3335

Claims Analysis

Total Claims: 15
Claim 1
Independent Claim 67 words
A process for preparing a compound of formula I ##STR20## wherein a solvent solution of a compound of formula II ##STR21## is mixed with a solvent solution of a compound of formula III ##STR22## under suitable process conditions, wherein A, same or different, is N--R, O, S, CRR' or P(O)R, and R and R' are hydrogen, alkyl, alkylidene, aryl, tosyl, allyl or benzyl, and B is O.
Claim 2
Dependent Claim 67 words
A process for preparing a compound of formula I ##STR20## wherein a solvent solution of a compound of formula II ##STR21## is mixed with a solvent solution of a compound of formula III ##STR22## under suitable process conditions, wherein A, same or different, is N--R, O, S, CRR' or P(O)R, and R and R' are hydrogen, alkyl, alkylidene, aryl, tosyl, allyl or benzyl, and B is O.
Claim 3
Dependent Claim 13 words
The process of claim 1 wherein A is O and B is O.
Claim 4
Dependent Claim 28 words
The process of claim 1 wherein the compound of formula II--solvent solution and the compound of formula III--solvent solution are simultaneously added to a reaction vessel containing solvent.
Claim 5
Dependent Claim 14 words
The process of claim 3 wherein the reaction vessel solvent is benzene or toluene.
Claim 6
Dependent Claim 25 words
The process of claim 3 wherein the compound of formula II is concentrated in benzene in a range of between about 0.12M and about 0.17M.
Claim 7
Dependent Claim 12 words
The process of claim 5 wherein the solvent is benzene or toluene.
Claim 8
Dependent Claim 25 words
The process of claim 3 wherein the compound of formula III is concentrated in solvent in a range of between about 0.24M and about 0.34M.
Claim 9
Dependent Claim 12 words
The process of claim 7 wherein the solvent is benzene or toluene.
Claim 10
Dependent Claim 28 words
The process of claim 3 wherein addition of the compound of formula II--solvent solution is at a rate of between about 1.5 and about 2.5 ml per minute.
Claim 11
Dependent Claim 28 words
The process of claim 3 wherein addition of the compound of formula III--solvent solution is at a rate of between about 1.5 and about 2.5 ml per minute.
Claim 12
Dependent Claim 60 words
A process for preparing an azacorand of formula IV ##STR23## wherein K and L, same or different, are N--R, O, S, CRR', or P(O)R, and R and R' are hydrogen, alkyl, alkylidene, allyl, aryl, benzyl or tosyl, comprising: (a) forming the compound of formula I according to the process of claim 1; and (b) reducing the compound of step (a).
Claim 13
Dependent Claim 15 words
A compound of formula IV wherein K and L are not both O or S.
Claim 14
Dependent Claim 15 words
A compound of formula IV wherein K and L are not both O or S.
Claim 15
Dependent Claim 188 words
A process for preparing a chromogenic cryptahemispherand of formula V ##STR24## wherein: R, same or different, is hydrogen, lower alkyl, lower alkylidene, lower alkenyl, allyl, aryl or benzyl; R', same or different, is lower alkyl, lower alkylidene, lower alkenyl, allyl, aryl or benzyl; R", same or different, is hydrogen, lower alkyl, lower alkylidene, lower alkenyl, allyl, aryl or benzyl; Y is an electron withdrawing group, e.g., CN NO 2 , CF 3 , COOR; m is 1 to 3; n is 1 to 3; a is 1 to 3; b is 1 to 3; k is 1 to 3; l is 1 to 3; and x is 2 to 4; wherein an azacorand formed as in claim 11 is coupled with the following compound VI ##STR25## wherein: R, same or different, is hydrogen, lower alkyl, lower alkylidene, lower alkenyl, allyl, aryl or benzyl; R", same or different, is lower alkyl, lower alkylidene, lower alkenyl, allyl, aryl or benzyl; R", same or different, is hydrogen, lower alkyl, lower alkylidene, lower alkenyl, aryl or benzyl; Y is an electron withdrawing group; Z is halogen; and w is 2 to 4.

References Cited (Backward Citations)

US4845212A Cited

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